Thermostatically-controlled valve mechanism



w. w. CARSON. JR

THERMOSTATICALLY CONTROLLED VALVE MECHANISM Filed Oct. 1926 2 Sheets-Sheet 1 4 l 2 O 9 7 w. w. CARSON. JR

THERMOSTATI CA LLY CONTROLLED VALVE MECHANISM '2 Sheets-Sheet 2 Filed Oct. .1926

m M We Patented Oct, 4, 1927. I

WILLIAM w. ennson; an, on KNOXVILLE, mnnnnssnn, nssrenon'ro u n nnn ron SYLPI-ION GOMPANY, on KNOXVILLE, TENNESSEE, A oomomwxon or DELAWARE. I

TnEBMesTATIcALLY-conrnoiinnnVVALVE momm es. 1

Application 'fiiea October so, 1926. fseria nof ias ie deteimi nes the quantit ofcooli'n medium circulating through thesystem and in tlllfmostaticalljy operated valve mechanism "oi' the by-pa's's type wherein the opening and closing time valve determines the path of saijdeooli'n'g medium. l 1

It is an object of tl's invention to provide a thermostatically operated Valve mechan-isin of simplifiedconstructionwhereby the same, may be1 readily and economically inanufae'tured fwi'tho'u't skilled labor and which is at the same time light and s'trong and durable and accurate andfefiici'ent in operation;

vide a device-of the character describe- .1 with improved means for associating the thermostat and va'lve mechanism by use of a combined supporta'nd cage for a thermo-r stat, "and which may be inexpensively man- Qthe'r objects of the invention appear 7 as the description of the inventionproceeds.

The invention is capable of rece ving a varlety of mechanical expressions, one 0t which is shown on the accompanying drawings, but it is to be expressly understood v that the drawings are for purpos'esof illustration only and are "not'to he construed as a definition of the limits of the invention, referencebeing had'to the appended claims for; that purpose. I Referring in detail to the drawings wherein the same reference characters, are employed to f designate corresponding parts in I ft-he several figures Fig.1 is an enlarged axial section of a thermostatically operated valve mechanism embodying the present invention. v I Fig.2 1s a fragmentary aX-ial section vof the embodiment of Fig. 1 taken in a plane at an angle to thesection plan of Fig. 1.

Figf-S i's-a section of the valveseati'ing. Fig. 4 is a bottom plan View of the ei'nhod im'ent of Fig. 1. I

[9. Inter'io'rly of the thermostat; said mov- Anotherobj'e'c't ot this invention is to protac he'd't'hereto, which by {engagemntwith V 8D a right angular bend orflange 17. .While" it is preferred'to bend up said combinedcag'e" and support from a": single blank" asyi ll'us- I Fig. 5 is a perspective view of thecoin-I timed-cage and 'sup}; ort and Fig. 6 is, a .planjview on a smaller easiest the valve s'eat'r'ing. 5

' In the form Shown n' g- 1, 1 is a F .60". Egg 211 v inos'ta't of any suitable construenon "and possessed of any suitableficham'ctr being shown as composed-ore deeply eases: gate" lapsi ble tubular metal wall; pr-simply esilient metal, connected suitable wa at its opposite ends; as by somenngee brazin to a stationary efidwall 23minmovable end wall. 3. Thestefionsry wall 2- is provided with an extenony threaded boss 1 which may also c'onteinthe 7 usual filling opening 5, shown-as sealed '41 stopper 6 and so1der'7; The movable end 7 Wall is provided in any suitable way intsgral Q therewith or connected thereto, with a valve stem ,8, shown as threaded at its exterior end able end W ll 3 is providedzwitlra tubular stop 10-,f ntegral therewith or suit-ably:at-

the stationaryend wa11 :e is d'esignecl to limit the contraction of the thermostat ineans "of acombined cage and support 11 which is preferably forin'ed of sheet metal sup ort has a base portion 1-2 in whichfis located anapertu re 13.:desi'gnedto receive m the threaded boss 1 on the stationary end wall 2 of the thermostat. Pfro jecti' ngat substantially'r'ight angles to the base12 are 'a plura lity of arms 14 Which'are reduced in width at their outer endskas shown at 15,, said reduced portions 15 beingv connected to the" main portions of said 'alllli by inclined or beveled surfaces 16-. .At their 'outer-extfre'inities, each of saidarms is'provided with trated in Fig. 5', the-broader aspects ofkthe. invention are not restricted thereto, as the coinbined'cage" and support can; be formed of a plur'ality of"strips bent to asuit-abl shape 'and'crossing each other at theirbase portions. Moreover, 'while' the combined highly flexible/,1expansible 'ahd e :In conformity with the present invention I I the thermostat l is "mounted position by valve memb r 30 am a p d w a central interiorly threaded hub 31 and locked to the valvestem by a'cotter pin 32.

positioned in a hole drilled through said hub and mr In. assembling the-parts athermostat' of any suitable characterisfirst provided and acombined cage a d s pp rtoof the char acter' shown 'inFig. 5 is assembled with the,

thermostat lockingthebase portion there- 7 of, to the stationary end wall of the thermo' stat, by meansof the nut 18; A valve seatf ringj Oof the'character shown in Fig, 6 having, been provided, the arms 15L of the combimdsupport and cage are introduced through, the cent'ralaperture' of said ring, and he outer ex emities 1: a d arms engaged; inf the notches 22 with; the flanges i fzieng ging the outer face of saidvalve seat ring; The parts are then clamped in this posi ion, by uniting, h pa r. o c o 214 inflow transverse memberof the character shown in,-Fig.;4, the inclin'edf or beveled surfacesifi fqrcing, the hook-like extremities 26f of saifcl transverse member axially outward intoj-engagment with; the valve seat v the valve disk 30 is threaded onto the valve stein 8,1untilf it engages valve seat 29, and preferably threaded a little'further so as touwith'draw the, tubular stop 10, when used, ffrmm iig gement wfihthel nd all of the thermostat, and s'aild valve member is thereupon locked to the valve stem 8, asby "the cotter pin 32. 1

The thermbstaa s i is r gi y suppor a by the combined cage and support 11," and its stationary" end. wall 2 is locked: to the valveseat ring against both axial and radial displacement. The transverse member 23, 2%ljfalso" acts as a gui'de' 'for the valve stem 8 ,;and, ifdesired, may ac tas a stop to limit the, expansive'j-movement of the thermostat.

The contractivemovement of the thermostat V is limited by'contact ofthe valve member'BO with its seat when in p0siti0n,;or by the engagement of the tubular stop 10 with the stationary end wall Q when the valve membar is not in position, although. this latter function" may be performed by a suitable stop on the valve stem engaging the transverse member 23, 24, if desired'i As before pointed out, the thermostat may be of any suitable character and possessed of any suitable physical characteristic.-

Preferably, it is charged-with a suitable thermosensiti ve fluid at a pressure belowatmospheric, at normaltemperature, so" that atall temperatures below that at which the thermostat isydesigned tofo'perate, them-1 terior pressure will be" less than the exterior PIGSZU'IQ, wherebythe exterior pres-f sure tends to collaps the thermostat. In the;

event of alealr'of the thermostat and; the equalization of the internal and external pressures,- the thermostat Willi therefore tendj to expand: and move the valve to open position'. It is to be expresslyunderstood, how

ever, that'the invention isnot limited tothe use of a thermostat of any particular con-- struction or characteristics."

It will therefore be perceived that'a simple 7 I thermostatically perated valve llllli'i has been provided which is composed" offufa few readily" manufactured-parts, many of which i may be blankedout 'of-and be'nt upfront sheet metal, and which may be inexpensively produced, assembled without the useel skilled labor and which, when assembled, form a light but strongand'. rig-id support for the thermostat, fixedly retainingits stationary end wall in" position and guiding and, if desired, limiting the movements of itsmcv'able end wall; \Vhileit ispreferred to make the parts out of" sheet-'metal, the

vention, in itsbroader aspects, is not limited to the use of. this material While the embodiment of the, invention h 7 shown onf the drawingsmas been-"described withconsiderableparticularity, it is to be r expressly understood that the inventionyis not restrictedthereto, as the same is capable of receiving a variety of 'mechanical* ex- .presslons, some ofwhich will now readily suggest" themselves to t -hose skilledin the art, while changes may be made-in the d'etails of construction, arrangementaand proportion of parts: without departingfrom; the

spirit of this invention 'Referencelis'there fore togbe'had to; the claims 'heretoappended for a definition ofsaid'inventiona Y Whatjis claimednis-z 1. In a-device or the "character described, -1 T5 incombination with a'th ermost'at and avalve member operatively connected thereto, a

valve seat ring provided; with projections, i

and a support for said thermostatengaging said projections and cooperating therewith to provide avalve seat for said valve niember.

a 2. In a device of the character described,-

in combinationwitha' thermostat and a'valve member operati'vely" connected thereto, a valve seatfring; provided with axially ex tending projections and a support forsaid thermostat-interengaging said projections Said a ve member; I

In a device of the character described,

and cooperating therewith to provid'e a seat I i combination with a. thermostat a valve member operatively connected thereto, a "valve seat ring provided withaxially extending projections, o and a support for said.

. '51 thermostat provided with radially extending projections interengaging with. said axially extendingprojectionsand cooperating there- I a with to, form a seat'for said valve member. i "4 In a device of'thecharacter described,

in combinationwith a thermostat and a valve member: operatively connected thereto a 5 valve seat ring provided with axially extend ing projections spaced toprovide islotstherebetween, and asupport for said: thermostat slots andforming with said projections a kse'at-cfor said valve member. V I v ,5 In a device of the character described,

5 Seat ring and a support for the thermostat provided withinte rloc'king projectionsfwhich 1 cooperate to "provide a seat forsaidfvalve ,1 V member, and meai s'for locking said support a '25 -to said rings 7 i I 515- 1 a d v of the character described, in

7 combination with. althermost'atland a valve jmember' operatively j'connected thereto,

7 fvalve, seat ring provided with projections, a

, supportfor said thermostat provided with 1 7 "arms interengagedwith' said projections and Icooperating therewith to providea seatIfor 7 said valve member, .and "mea n s for 'locking 5:3 a transverse. .member composedfof sections united to embrace OPPiOSGdfiI'IIiS of saidsup;

I 3 7." In adevice of the characterdescribed, 1-in mb at n ha th rm s at-a e e Valve member operatively con-nected thereto, a

m s pmyi dx i hd t n er s ed with said projections and cooperatingtherer ia il l w ra e t t ito provi e a se for fsaid [valve me ber, and a finember for securing s aid arms to said ring, said member embracing said N valve stem and acting-as .a k i idetherefor.

1 V 'Y In" a device of Qthe" in combination with aLtheIjmOstat and :a valve providedfwith arms inte rengaging j in said V incomjbination with-a thermostat avalvej stem voperatively eoiinectedthereto, a valve said arms to said valve seat rin including lvalve l seat ring; provided with axia11y l xen in .p 'eject n as pp r-t; f r s i t wi ite.Pm as t,fdr a 'i i l im b i m' 'mber',;;= perat rly conn dh te oi a valve seat ring provided with projections, a suppo'rt for said thermostat provided with arms whichr'interlock with said v projections and coop eratetherewith to pro'vide aseat, -for said valve member, and a member for securing said arms to said ring, said member 7 acting as a stop limit thev movement of the thermostat. Y r v M 1 0. Ina device of the character describedf' in combination with" a thermostat and valve memberioperatively connected 1 thereto, a valve seatring provided with axiallyexe tending projections, asupport for said ther mostat provided with arms whichinterlo'ck with said projections and form a valve seat,

anda transversemember for securing said arms to said ring, said'arms having radially; I pro ecting flanges WhlQh engage sa1d ring on one side andlsaid transverse member having portions which engage sa d ring on its oppos te side;- r

11. Ina devicei of the character described inconibination' with a thermostat." and a! valvemember'operatively'connectedthereto,7 I

a valve seat ring; provided with aXiaHy eX tending projections, a s'upportiorsaid the mostat provided with f arms having 'fianges which int; riockfi with said projections, said flanges and pro ections constituting aivalve .seat for said valve inemben and mean's'dor locking said'rarms in engagement withisaid 7 ring.

in combination with afthermostat fa'ndfa valve member operatively "connected there extending projectionsj a support for. said thermostat provided I V arms I, having fiangediextremities interengaged with :said 7 105 projections, the extremities of said arms and 12. In a device o fthe character described,

100 v e to, a valve, seat ring provided with axially said projections constituting a Waive irseat member for securing said arms tusjaid ring,

said member including sectionsiunited to, o 110,

embrace opposed arms, of said'support.

for saidf valve lineiiiber, 'andff'a "transverse" c 13.1 I'n a device of the'charaet'er described; in: combination with a thermostat 'and 'a i '-va1ve member operatively connected there to,a* valve seatrin'g: provided with notches therebetween', l a: support' 'for said thermostat provided with arms engaged in sa'i'd no'tches, said arms constituting with said raisedupor tions a valve :seat for "said valve inembei,

and means for locki'iig lsaid arms in engag ment w th said ring includ ng afitransvers'e member composedofsections un ted to" said 7 adevice o'ft'he charact described, 7 in comb nat on w th a; thermostat, and a I at its innerperipheryfwith,raised portions;

valve member operatively connected thereto} a valve seat ring-provided with notches at its 5 inner periphery with raised portions therebetweema support for. saidthermostat pr v de 'iiifih' e tn as oi s e-{ me 1 said arms being provided with radially pro- V jecting flanges'which engage the outer faces 1 her, and means for locking said arms to said ring including a transverse member composed of sections united to said arms.-

' 15. In a device of the character described, in combination with a thermostat and a valve member operatively connected thereto, a valve seat ring provided with notches at its inner periphery with raised portions therebetween, a support for the thermostat provided with arms which engage in said notches, said arms being provided with radi Y ally projecting flanges which engage the outer faces of said valve seat ring and fillthe spaces between said raised the outer faces of said anges and said portions whereby v raised portions constitute a valve seat for said valve member, and a'transverse member for clamping said ring againstsaid flanges and including a plurality of sections having hook-shaped extremities united. about opposed arms and cooperatingtoprovide a valve stem guide.

In testimony whereof I'have signed this specification.

WILLIAM W; CARSON, 

